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A176841 as a simple table

na(n)
10
21
32
42
53
63
74
84
95
105
116
126
137
147
158
167
178
188
199
209
2110
2210
2311
2410
2512
2611
2713
2812
2913
3012
3113
3213
3314
3414
3515
3613
3714
3814
3915
4014
4115
4215
4316
4416
4517
4617
4718
4817
4919
5018
5120
5219
5320
5419
5521
5620
5722
5821
5922
6021
6122
6222
6323
6422
6524
6623
6724
6824
6925
7024
7125
7225
7326
7426
7527
7627

[0,1,2,2,3,3,4,4,5,5,6,6,7,7,8,7,8,8,9,9,10,10,11,
 10,12,11,13,12,13,12,13,13,14,14,15,13,14,14,15,
 14,15,15,16,16,17,17,18,17,19,18,20,19,20,19,21,
 20,22,21,22,21,22,22,23,22,24,23,24,24,25,24,25,
 25,26,26,27,27]